$ git clone -n https://src.fedoraproject.org/rpms/git-annex.git /var/lib/mock/f38-build-side-42-init-devel-1131210-30333/root/chroot_tmpdir/scmroot/git-annex
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1131210-30333/root/chroot_tmpdir/scmroot/git-annex'...
$ git fetch origin 219fd4c8dd8d32fccea90ffb7a6970b45e75398a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/git-annex
 * [new ref]         219fd4c8dd8d32fccea90ffb7a6970b45e75398a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 219fd4c Update to 10.20230321